1. Post-Impressionism developed techniques like painting outdoors (en plein air) and pointillism using tiny dots of color.
2. Artists like Seurat, Gauguin, and Cézanne wanted to combine Impressionism's spontaneity with more structured classical compositions, influencing 20th century art.
3. Cézanne's works influenced the Cubism movement through techniques like using multiple viewpoints and underlying shapes in his paintings.